Who discovered M82?
Johann Elert Bode
How was M82 discovered?
As a member of the M81 group, M82 is 12 million light years distant. M82 was discovered on December 31, 1774 by Johann Elert Bode together with M81; he described it as a “nebulous patch”, about 0.75 deg away from M81, which “is very pale and of elongated shape,” and cataloged it as No. 18 in his catalog.
Where is M82 galaxy?
RA 9h 55m 52s | Dec +69° 40′ 47″
How far is M82 galaxy from Earth?
11.42 million light years
Why is it called Cigar Galaxy?
In M82, young stars are crammed into tiny but massive star clusters. It is also called the “Cigar Galaxy” because of the elliptical shape produced by the oblique tilt of its starry disk relative to our line of sight.
How many stars are in the Cigar Galaxy?
30 billion stars
Can you see the Cigar Galaxy?
How to See It: The Cigar Galaxy is a bright and easily seen galaxy that is simple to locate in the sky. If you have a low power eyepiece you can see M81 at the same time in the same field of view. Both of these galaxies are found at the Ursa Major constellation.
How far away is the Cigar Galaxy?
Are there stars in between galaxies?
Yes, there are stars between galaxies. When there are collisions or interactions between galaxies, stars can be ripped out of the galaxies. These stars will then wander into space between galaxies. Such stars have been observed with the Hubble Space Telescope.
How cold is empty space?
If atoms come to a complete stop, they are at absolute zero. Space is just above that, at an average temperature of 2.7 Kelvin (about minus 455 degrees Fahrenheit). But space is mostly full of, well, empty space.
Is the space between galaxies empty?
Intergalactic space takes up most of the volume of the universe, but even galaxies and star systems consist almost entirely of empty space.
Why do galaxies not look black?
In order to see light, something must be producing the glow, but the space between galaxies is largely empty so we observe this space to be black.
Is there nothing between galaxies?
People often think of space as “empty” or a “vacuum”, meaning that there’s absolutely nothing there. The term “void of space” often refers to that emptiness. However, it turns out that the space between planets is actually occupied with asteroids and comets and space dust.
Is Milky Way in a void?
Astronomers have previously noticed that the Milky Way sits in a large, flat array of galaxies called the Local Sheet, which bounds the Local Void. The Local Void extends approximately 60 megaparsecs (200 Mly), beginning at the edge of the Local Group.
What’s inside a void?
Cosmic voids are vast spaces between filaments (the largest-scale structures in the universe), which contain very few or no galaxies. Voids are believed to have been formed by baryon acoustic oscillations in the Big Bang, collapses of mass followed by implosions of the compressed baryonic matter.